4000 Router Series Layer 2 - WAN Configuration Guide

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# Configure PPP authentication on BRI 1/0, and assign it to dialer bundle 0.

[RouterA-Bri1/0] interface bri 1/0

[RouterA-Bri1/0] dialer bundle-member 0

[RouterA-Bri1/0] ppp mp

[RouterA-Bri1/0] link-protocol ppp

[RouterA-Bri1/0] ppp authentication-mode pap

[RouterA-Bri1/0] ppp pap local-user usera password simple usera

2. Configure Router B:

# Create dialer access group 2 and configure a dial access rule for it. Create a local user account

usera for Router A, configure PPP authentication for it, and set the traffic statistics collecting interval

to 3 seconds for DDR.

<RouterB> system-view

[RouterB] dialer-group 2 rule ip permit

[RouterB] local-user usera class network

[RouterB-luser-network-usera] password simple usera

[RouterB-luser-network-usera] service-type ppp

[RouterB-luser-network-usera] quit

[RouterB] dialer flow-interval 3

# Assign an IP address to interface Dialer 0, enable C-DDR, and configure the dial strings, MP,

and information for PPP authentication.

[RouterB] interface dialer 0

[RouterB-Dialer0] ip address 100.1.1.2 255.255.255.0

[RouterB-Dialer0] dialer circular enable

[RouterB-Dialer0] dialer-group 2

[RouterB-Dialer0] dialer route ip 100.1.1.1 8810048

[RouterB-Dialer0] dialer route ip 100.1.1.1 8810049

[RouterB-Dialer0] ppp mp

[RouterB-Dialer0] ppp authentication-mode pap

[RouterB-Dialer0] ppp pap local-user userb password simple userb

[RouterB-Dialer0] quit

# Bundle timeslots on CE1/PRI interface E1 2/0 into a PRI group.

[RouterB] controller e1 2/0

[RouterB-E1 2/0] pri-set

[RouterB-E1-2/0] quit

# Assign interface Serial 2/0:15 created on E1 2/0 to interface Dialer 0.

[RouterB] interface serial 2/0:15

[RouterB-Serial2/0:15] dialer circular-group 0

Configuration example for router-to-router ISDN caller

identification callback with C-DDR

Network requirements

As shown in Figure 46, configure ISDN caller identification callback with C-DDR between Router A and

Router B, specifying Router A as the callback client and Router B as the callback server.